River bank foundation pit inclined support

Abstract

The utility model discloses a river bank foundation pit inclined support, including foundation pit fender post, foundation pit upright post pile, crown beam, foundation pit horizontal support and inclined support, the foundation pit fender post is located around the foundation pit, the foundation pit upright post pile is located inside the foundation pit, the top of the foundation pit fender post is provided with the crown beam 1, the top of the foundation pit upright post pile is provided with the crown beam 2, and the inclined support is located inside the foundation pit. The foundation pit horizontal support is horizontally arranged in the foundation pit and connected with the low earthwork side foundation pit fender post, the foundation pit stand column pile and the high earthwork side foundation pit fender post, the upper end of the inclined support is connected with a top beam at the top of the high earthwork side foundation pit fender post, and the lower end of the inclined support is connected with a top beam at the top of the foundation pit stand column pile. The stress condition of the foundation pit fender post on the high earthwork side is improved through the inclined support, and the horizontal displacement of the top of the foundation pit fender post is reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of water conservancy engineering and foundation pit engineering, and relates to an inclined support for riverbank foundation pits. Background Technology

[0002] Currently, in water conservancy projects, foundation pits are often excavated on riverbanks for the construction of sluice gates or bridge piers. Riverbanks typically feature steep slopes, and conventional foundation pit designs often require horizontal internal supports to be installed starting from the lower earthwork side. This results in excessive horizontal deformation of the retaining pile tops on the higher earthwork side, significant earthwork displacement, and cracking of the rear embankment. The traditional solution to this problem is to add a row of piles on the higher earthwork side, transforming the retaining structure there into a double-row pile structure. Summary of the Invention

[0003] To overcome the shortcomings of traditional horizontal internal supports for foundation pits in areas with steep riverbank slopes, which cannot effectively support the high earthwork side and result in excessive horizontal displacement of the top of the retaining piles on the high earthwork side, this utility model provides an inclined support for riverbank foundation pits. This can effectively improve the stress conditions of the retaining piles on the high earthwork side, reduce the horizontal displacement of the top of the retaining piles, and make the entire foundation pit system safer and more reliable.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A type of inclined support for riverbank foundation pits, characterized by comprising foundation pit retaining piles, foundation pit column piles, a capping beam, horizontal supports, and inclined supports. The foundation pit retaining piles are located around the perimeter of the foundation pit, while the foundation pit column piles are located inside the foundation pit. A first capping beam is installed on top of the foundation pit retaining piles, and a second capping beam is installed on top of the foundation pit column piles. The horizontal supports are horizontally positioned inside the foundation pit and connected to the foundation pit retaining piles on the lower soil side, the foundation pit column piles, and the foundation pit retaining piles on the higher soil side. The inclined supports are connected at their upper ends to the capping beams at the top of the foundation pit retaining piles on the higher soil side and at their lower ends to the capping beams at the top of the foundation pit column piles. The inclined supports improve the stress conditions of the foundation pit retaining piles on the higher soil side and reduce the horizontal displacement of the foundation pit retaining pile tops. The capping beams are reinforced concrete continuous beams that connect the pile foundations at the top of the piles.

[0006] Furthermore, the top of the retaining piles is vertically connected to the capping beam via reinforcing bars, and the bottom of the piles enters a relatively stable stratum. The retaining piles are the main body of the foundation pit retaining structure, ensuring the overall stability and safety of the foundation pit. A relatively stable stratum refers to a stratum whose structure and physical and mechanical properties (such as strength and deformation modulus) remain essentially unchanged or change very little within a certain timeframe under specific geological conditions and the influence of engineering activities. A relatively stable stratum can withstand certain engineering loads and external forces under normal conditions.

[0007] Furthermore, the top of the foundation pit column pile is connected to the second capping beam via a vertical steel bar, and the bottom of the pile enters a relatively stable stratum. The foundation pit column pile serves as a load transfer device, ensuring the connection of various components of the foundation pit and bearing the vertical load transferred by the inclined support.

[0008] The lower end of the inclined support is connected to the foundation pit column pile by extending the second capping beam at the top of the foundation pit column pile through a bent steel bar; the upper end of the inclined support is connected to the foundation pit retaining pile by extending the first capping beam at the top of the foundation pit retaining pile through a bent steel bar.

[0009] Furthermore, the inclined support for the riverbank foundation pit includes walers, which are installed on the retaining piles on the high earthwork side of the foundation pit. The horizontal support for the foundation pit is connected to the retaining piles on the high earthwork side of the foundation pit through the walers. The walers are steel beams or reinforced concrete beams that connect multiple retaining piles on the high earthwork side of the foundation pit into a whole.

[0010] Furthermore, the horizontal supports for the foundation pit are respectively connected to the retaining piles on the lower earthwork side, the foundation pit column piles, and the retaining piles on the higher earthwork side by horizontally extending steel bars into the first and second capping beams and the walers. This ensures the overall spatial stability of the foundation pit.

[0011] Furthermore, the waler is fixedly connected to the retaining piles of the high earthwork side foundation pit by means of suspension bars.

[0012] Furthermore, one side of the lifting bar extends into the waler, and the other side is welded to the reinforcing bars of the retaining piles on the high earthwork side of the foundation pit. (The surface of the retaining piles on the high earthwork side of the foundation pit can be partially chiseled open to expose the reinforcing bars for welding).

[0013] Furthermore, the inclined support for the foundation pit is connected to the foundation pit retaining piles, foundation pit column piles, and horizontal support, respectively, to improve the stress conditions of the retaining piles on the high earthwork side and reduce the horizontal displacement of the top of the retaining piles.

[0014] The foundation pit retaining piles, foundation pit column piles, foundation pit horizontal supports, and inclined supports are connected as a whole through the foundation pit retaining piles, foundation pit column pile cap beams, foundation pit walers, and reinforcing bars.

[0015] The main benefits of this utility model are: 1. It effectively improves the stress conditions of the retaining piles on the high earthwork side and reduces the horizontal position of the top of the retaining piles; 2. It does not require setting up a double-row pile retaining structure on the high earthwork side, requiring less space and saving more money; 3. The construction method is conventional and easy to promote. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of an inclined support for a riverbank foundation pit.

[0017] Figure 2 This is a top view of a riverbank foundation pit with inclined support (showing the lower soil side of the foundation pit).

[0018] Figure 3 This is a top view of a riverbank foundation pit with inclined support (showing the middle of the pit).

[0019] Figure 4 This is a schematic diagram showing the connection between the retaining piles and the horizontal supports of the foundation pit on the low earthwork side.

[0020] Figure 5 This is a schematic diagram showing the connection between the inclined support and the retaining piles and column piles of the high earthwork side foundation pit.

[0021] Figure 6 This is a schematic diagram showing the connection between the horizontal support of the foundation pit and the retaining piles of the high earthwork side foundation pit.

[0022] Among them, 1 is the retaining pile of the low earthwork side foundation pit, 2 is the foundation pit column pile, 3 is the first capping beam, 4 is the horizontal support of the foundation pit, 5 is the inclined support of the foundation pit, 6 is the waler, 7 is the pile reinforcement, 8 is the hanging reinforcement, 9 is the horizontal support reinforcement, 10 is the inclined support reinforcement, 11 is the retaining pile of the high earthwork side foundation pit, and 12 is the second capping beam. Detailed Implementation

[0023] The present invention will now be further described with reference to the accompanying drawings.

[0024] Reference Figure 1-6 A type of inclined support for a riverbank foundation pit includes foundation pit retaining piles, foundation pit column piles 2, capping beam 3, foundation pit horizontal support 4, inclined support 5, waler 6, and capping beam 2 12. The foundation pit retaining piles, as the main body of the foundation pit support, are set around the foundation pit, including foundation pit retaining piles 1 on the lower soil side and foundation pit retaining piles 11 on the higher soil side; capping beam 3 is set on top of the foundation pit retaining piles, and capping beam 2 12 is set on top of the foundation pit column piles 2; the foundation pit column piles 2, as a load transfer device, are set inside the foundation pit; the foundation pit horizontal support 4 is horizontally set inside the foundation pit and connected to the foundation pit retaining piles 1 on the lower soil side, the foundation pit column piles 2, and the foundation pit retaining piles 11 on the higher soil side. Specifically, as... Figure 1 As shown, the horizontal support 4 of the foundation pit is connected and fixed to the foundation pit retaining pile 1 on the low earthwork side, the foundation pit column pile 2, and the foundation pit retaining pile 11 on the high earthwork side through the capping beam 3, the capping beam 2, and the waler 6; the lower end of the inclined support 5 is connected to the capping beam 2 12 on the top of the foundation pit column pile 2, and the upper end is connected to the capping beam 3 on the top of the foundation pit retaining pile 11 on the high earthwork side, preferably at a 45-degree angle to each other.

[0025] The retaining piles of the foundation pit are vertically connected to the first capping beam 3 via pile reinforcement 7, with the pile bottom entering a relatively stable stratum. The top of the foundation pit column pile 2 is vertically connected to the second capping beam 12 via pile reinforcement 7, with the pile bottom entering a relatively stable stratum. The horizontal support 4 of the foundation pit is horizontally connected and fixed to the retaining pile 1 on the low earthwork side, the foundation pit column pile 2, and the foundation pit retaining pile 11 on the high earthwork side via horizontal support reinforcement 9 extending horizontally into the first capping beam 3, the second capping beam 12, and the waler 6. The inclined support 5 is connected and fixed to the top of the foundation pit retaining pile 11 on the high earthwork side and the foundation pit column pile 2 via inclined support reinforcement 10 bent and extending into the second capping beam 12 and the first capping beam 3.

[0026] like Figure 6 As shown, the foundation pit waler 6 is connected to the high earthwork side foundation pit retaining pile 11 by the suspension bar 8. One side of the suspension bar extends into the waler 6, and the other side is welded to the pile reinforcement 7 of the high earthwork side foundation pit retaining pile 11 (the reinforcement can be exposed by partially chiseling open the surface of the high earthwork side foundation pit retaining pile 11).

[0027] In this embodiment, the retaining piles of the foundation pit are connected to the capping beam by steel bars at the top and enter a relatively stable stratum at the bottom, with high rigidity, which can ensure the overall stability of the foundation pit.

[0028] In this embodiment, the foundation pit column piles serve as load transfer devices. The top of the piles is connected to the capping beam via steel bars, and the bottom of the piles enters a relatively stable stratum, ensuring the connection of various components of the foundation pit and bearing the vertical load transferred by the inclined support.

[0029] In this embodiment, the horizontal and diagonal supports of the foundation pit are connected to the capping beams at the top of the foundation pit retaining piles and the walers of the pile bodies through steel bars, respectively, to ensure the overall spatial stability of the foundation pit.

[0030] In this embodiment, the inclined support of the foundation pit is connected to the foundation pit retaining piles and the top cap beam of the foundation pit column through steel bars, which improves the stress conditions of the retaining piles on the high earthwork side and reduces the horizontal displacement of the top of the retaining piles.

[0031] The construction sequence in this embodiment is as follows: foundation pit retaining pile 1 → foundation pit column pile 2 → capping beam 3 → waler 6 → foundation pit horizontal support 4 → foundation pit inclined support 5.

[0032] The embodiments described in this specification are merely examples of implementations of the inventive concept and are for illustrative purposes only. The scope of protection of this utility model should not be considered limited to the specific forms described in these embodiments; rather, it extends to equivalent technical means that can be conceived by those skilled in the art based on the inventive concept.

Claims

1. A banked foundation trench raking support, characterized by, The application relates to a foundation pit support structure, which comprises foundation pit support piles, foundation pit column piles, crown beams, foundation pit horizontal supports and inclined supports, wherein the foundation pit support piles are arranged around the foundation pit, the foundation pit column piles are arranged inside the foundation pit, the top of the foundation pit support piles is provided with a crown beam I, the top of the foundation pit column piles is provided with a crown beam II, the foundation pit horizontal supports are horizontally arranged inside the foundation pit and are connected with the foundation pit support piles, the foundation pit column piles and the foundation pit support piles on the low earth side, the upper end of the inclined supports is connected with the crown beam on the top of the foundation pit support piles on the high earth side, and the lower end of the inclined supports is connected with the crown beam on the top of the foundation pit column piles.

2. A banked foundation batter support according to claim 1, wherein, The top of the foundation pit support piles is connected with the crown beam I through the vertical extension of the steel bars, and the bottom of the foundation pit support piles enters the relatively stable stratum.

3. A banked foundation batter support as claimed in claim 1 wherein, The top of the foundation pit column piles is connected with the crown beam II through the vertical extension of the steel bars, and the bottom of the foundation pit column piles enters the relatively stable stratum.

4. A banked foundation batter support according to claim 1, wherein, The lower end of the inclined supports is connected with the foundation pit column piles through the bending extension of the steel bars into the crown beam II on the top of the foundation pit column piles; and the upper end of the inclined supports is connected with the foundation pit support piles through the bending extension of the steel bars into the crown beam I on the top of the foundation pit support piles.

5. A banked foundation batter support according to claim 1, wherein, The inclined support of the river bank foundation pit comprises a surrounding purlin, which is arranged on the foundation pit support piles on the high earth side, and the foundation pit horizontal supports are connected with the foundation pit support piles on the high earth side through the surrounding purlin.

6. A banked foundation batter support according to claim 5, wherein, The foundation pit horizontal supports are connected with the foundation pit support piles on the low earth side, the foundation pit column piles and the foundation pit support piles on the high earth side through the horizontal extension of the steel bars into the crown beam I, the crown beam II and the surrounding purlin.

7. A banked foundation batter support according to claim 5, wherein, The surrounding purlin is fixedly connected with the foundation pit support piles on the high earth side through the hanging steel bars.

8. A banked foundation batter support according to claim 7, wherein, One side of the hanging steel bars extends into the surrounding purlin, and the other side of the hanging steel bars is welded on the steel bars of the foundation pit support piles on the high earth side.

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